10/12= $.83 per inch
20/18= $1.11 per inch
Answer:
<h3>f =27</h3>
Step-by-step explanation:

Collect like terms and simplify

Switch sides

Pick 2 points off ur line...it is easier if u pick whole number points
(2,0) and (0,5)
slope formula = (y2 - y1) / (x2 - x1)
now label ur points
(2,0)...x1 = 2 and y1 = 0
(0,5)...x2 = 0 and y2 = 5
now sub and find the slope
slope(m) = (5 - 0) / (0 - 2) = -5/2 <====
22/29 = 0.76
0.76*100 = 76
You got a 76%